#pragma GCC optimize(2)
#include <bits/stdc++.h>

using namespace std;
#define int long long
const int inf = 0x3f3f3f3f3f3f3f3f;

void solve()
{
	int a, b;
	cin >> a >> b;
	if (a == b) cout << 0 << '\n';
	else
	{
		int x = lcm(a, b);
		if (x == a || x == b) cout << 1 << '\n';
		else cout << 2 << '\n';
	}
}

signed main()
{
	ios_base::sync_with_stdio(false);
	cin.tie(0);
	cout.tie(0);
	int _ = 1;
	cin >> _;
	while (_--)
	{
		solve();
	}
	return 0;
}